.card {
    border-radius: 15px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.list-group-item {
    transition: all 0.2s;
    border-left: 4px solid transparent;
}

.list-group-item:hover {
    border-left-color: #0d6efd;
    background-color: #f8f9fa;
}

.alert {
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

#knowledgeGraph {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 400px;
    border: none;
}

.btn {
    letter-spacing: 1px;
    font-weight: 500;
}